How to Test ANY Relay & Wiring | How to Bypass any Relay | 4 & 5 Pin Relays

In this video I explain how to test different types of relays off the car and on the fuse box. I explain the relay operation at first, the I show you the 4 pins relay testing procedure and then I continue with two different types of 5 pins relays, then I take the camera on the car to show you how you can test the relay circuit and how to bypass it. 00:05 Intro 00:46 Relay operation understanding 03:11 Relay internal diagram understanding 06:19 Explaining the Testing Procedure on 4 Pin Relays 09:27 Testing a Four Pin Relay 12:14 Testing a Five Pin Relay (Two Switch Type) 17:48 Testing a Five Pin Relay (One Switch Type) 23:12 Testing the Relay Circuit on the Fuse Box 27:50 Bypassing the Relay ~~~~~ 🎯 Online Courses: 🧑‍🎓 Automotive Engine Sensors Intro, Operation & Diagnosis: https://mechanicourse.com/course/auto... 🧑‍🎓Automotive Engine Actuators Intro, Operation & Diagnostic: https://mechanicourse.com/course/auto... 🧑‍🎓 Smart Key System (Push Button Start) Operation & Diagnostic: https://mechanicourse.com/course/smar... 🧑‍🎓 Automotive Diagnostic with Oscilloscope: https://mechanicourse.com/course/how-... 🧑‍🎓 CAN-Bus Network Intro, Application & Diagnostic: https://mechanicourse.com/course/auto... 🧑‍🎓 Automotive LIN-Bus & K-Line Inro, Application & Diagnosis https://mechanicourse.com/course/auto... 🧑‍🎓 Gasoline Direct Injection System Diagnostic: https://mechanicourse.com/course/107-... 🧑‍🎓 Automotive Airbag (SRS) Diagnostic: https://mechanicourse.com/course/auto... 🧑‍🎓 Everything about Electric Power Steering System: https://mechanicourse.com/course/ever... 🧑‍🎓 ABS & Traction Control System Diagnostic: https://mechanicourse.com/course/abs-... 🧑‍🎓 Starting System Diagnostic & Schematics Analysis: https://mechanicourse.com/course/auto... 🧑‍🎓 Tire Pressure Monitoring System Intro, Operation & Diagnosis: https://mechanicourse.com/course/tire... 🧑‍🎓Power Outside Mirrors Diagnostic: https://mechanicourse.com/course/powe... Disclaimer: Any information contained in this video is just the understanding of “Automotive Diagnosis: Cars Repair & Training Guides” and it is not an official guide or reference, so everything provided in this video is just a share of our experience and understanding and they are provided as a courtesy for your reference only. So, if you are using any part of this video, use the information at your own risk. We highly advise you to check the manufacturer owner’s manual before performing any act of removal, diagnosis, inspection, or repair on your car to know about what you are authorized to do on your car, what the correct and legal procedure is and what risks might be involved, also viewers are strongly advised to consult a licensed person before any sort of inspection or repair. Due to the factors beyond the control of “Automotive Diagnosis: Cars Repair & Training Guides”, we cannot guarantee against improper use of information or tools or systems, or the procedure provided. “Automotive Diagnosis: Cars Repair & Training Guides” disclaims any damage, injury or loss caused by your decision to follow the steps provided in this video.